[MW:6266] Re: Solution Annealing of Stainless Steels

Dear Abhijit,

The reason why using 316L quality instead of ordinary 316 material is
because this material is not sensitive for carbide precipitation. When
using 316L material the carbon content need to be less than 0.03% and
therefore there is less carbon to create such precipitates. So in
general you may say that from manufacturing site there is no need for
solution heat treatment when using 316L, however when the material has
undergone hot working without temperature control and the method of
heating is by way of gas burners you need to be sure that no increase
of carbon content is caused by maladjustment of the burners in the
materials surface.
If this can't be guaranteed a solution heat treatment can cause no
harm. You have to understand that in such case the material no longer
full fill the requirements of 316L material and therefore this could
be a reason for rejecting the material.
So it's not recommended and/or required to perform the solution heat
treatment but I personally never should accept hot working without
controlling the temperature and/or other conditions.

Best Regards,

Herman Pieper

On 2 aug, 18:19, Abhijit <abhian...@yahoo.com> wrote:
> Dear Jeff
>
> How you define sensetization temp range and again this will depends on the time duration that material is held for and based on that only we will able to define the sensitisation and their further effect of carbide precipitation
>
> Is it recommanded to carryout solution annealing for SS316L material which undergoes hot work ,without controlling temperature and duration less than 10-20 minutes and after that natural cooling?
>
> Abhijit
>
> Sent from my iPhone
>
> On Aug 2, 2010, at 5:42 PM, Jeff <jwsowa...@gmail.com> wrote:

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